Scatter and transmission doses from several pediatric X-ray examinations in a nursery

Pediatr Radiol. 2003 Oct;33(10):704-8. doi: 10.1007/s00247-003-0999-1. Epub 2003 Jul 12.


Background: While several studies have investigated the dose from scattered radiation from X-ray procedures in a pediatric nursery, they examined scatter from chest procedures only, or the types of examination were not specified.

Objective: The aim of this study was to collect scatter and transmission data from several types of X-ray examinations.

Materials and methods: Using a "newborn" anthropomorphic phantom and an ion chamber, a series of scatter and transmission dose measurements were performed using typical exposure factors for chest, chest and abdomen, skull, skeletal long bone and spine procedures. The phantom was inside a crib for all exposures.

Results: The maximum scatter dose measured at 1 m from the field center was about 0.05 micro Gy per exposure for lateral skulls. Transmission doses for lateral exams were around 0.1 micro Gy per exposure at 1 m from the isocenter.

Conclusions: The study demonstrated that scatter dose to other patients in a neonatal unit is not significant, assuming the distance between adjacent cribs is in the order of 1 m. Transmission doses are also low provided the beam is fully intercepted by the cassette. For an average workload the dose received by imaging technologists would be small.

MeSH terms

  • Humans
  • Infant, Newborn
  • Nurseries, Hospital*
  • Phantoms, Imaging
  • Point-of-Care Systems
  • Radiation Protection*
  • Radiography / instrumentation*
  • Radiometry / instrumentation
  • Scattering, Radiation